Blowpipe.



J. I'. WILLIAMS.

BLOWPIPE.

J. F. WILLIAMS.

BLOWPIPE.

APPLICATION FILED MAY 28, 1909.

Patented Dec. '7, 1909.

2 SHEETS-SHEET 2.

7J 79 gb Q WITNESSE? 76 Y Mr.

JOHN F. WILLIAMS, 0F SANDUSKY, OHIO.

y BLowPIPE.

Speccation of Letters Patent.

Patented Dee. 7,1909.

Application led May 28, 1909. Serial No. 498,822.

T c all whom 'it may concern:

lle it known that l, Jeux F. WILLIAMS, a citizen of the United States,residing at Sandusky. in the county of Lake and State of ()hio. haveinvented a certain new and useful Improvement ir Blowpipes, of which thefollowing is a full, clear, and exact description, reference being hadto the accompanying drawings.

This invention relates to blow pipes, and especially pipes which aredesigned for the lan-ning of acetylene.

Objects of my invention are to provide a pipe of this kind which shallbe extremely safe, convenient of operation, .and which, while combiningthe factors of safety and convenience, shall be light in weight andcapaliile. of a wider range of application.

Generally speaking, the invention may be detined as consistin of thecombinations of elements embodied 1n the claims hereto annexed andillustrated in the drawings forming part hereof, wherein- Figure lrepresents a view, partly in longitudinal section and partly 1nelevation, of a blow pipe constructed in accordance with my invention,showing the connections for supplying fuel thereto Figs. 2, 3 and 4 aresectional details corresponding res ectively to the lines A-A, B-Band'C-Q of Fig. 1; Fig. 5 represents an elevation of the pipe shown inlFig. 1, the oxygen branch pipe being omitted and a special form of tipbeing shown as applied thereto, Figs. 6, 7 and 8 represent longitudinalsectional views through special tips which may be employed with'my pipe;and Fig. 9 is a similar view illustrating the manner in which the tipshown in Fig-7 may be combined with the other forms of tips. Y y

Describing the parts by reference characters, 1 represents the blow pipegenerally, the sa me comprising a hollow body or casing 2 which isgenerally cylindrical in shape and is provided with an externallythreaded front end 3 and an externally threa'ded rear end 4. The front of the casing 2 is provided f with an internal chamber 5 and the rear end'"with a chamber l 3, said chambers being con- 5o,

nected by a relatively reduced bore 7, the -front end of which isinternally threaded for the reception of the rear end of a nozzle 8.

This nozzle is provided with a restricted;

vided with a thread for the reception of acorreslionding external threadon a Valve stein l0. This stein extends through the rear of 'the casing2 and is there provided with a milled head 11. A gland nut 12 isthreaded. onto the rear end of the casing 2 and is providedwith achamber for packing 13. The front end of the'stein 10 is reduced toprovide an annular space therearound and the extreme front end of thestem is tapered, as shown at 14, to provide a needle valve cooperatingwith the inlet end of the bore 7.

l5 denotes a tip which is provided with a bore 16 communicating with achamber 17, the chambered end being provided with an internal thread bymeans of which the tip is screwed onto the front of the casing 2. Thefront end of the nozzle 9 projects across the chamber 17 and into thevflaring inlet end of the bore 16. The outer surface of the tip isprovided with a screw thread 18. This thread is deep, whereby it lservesthe double purpose of att'ording'a connection for additional tips andmeans for cooling, by radiation, the tip 15. y The front or dischargeend o f the tip 15`is beveled, as shown at 19, to enable it to form atight or union connection with other tips. y

The casing 2 is provided with a connection 20 which is threaded into theupper portion thereof and communicates with the chamber 5. Thisconnection is preferably a short, angular pipe section, one branch ofwhich extends substantially parallel with the casing 2 and is providedwith a threaded end for the reception of the correspondingly threadedend of the sleeve 2l. This sleeve is provided at its opposite end withan internally threaded projection 22 for a threaded stern 23, said stemcarrying within the sleeve or casing a plunger 24.

25 denotes a valve which is normally held to its seat on the outer endof the connection 20 by means of a spring 26 interposed between saidValve and the plunger 24. The valve 25 has a guide 27 projecting intothe conneetion 2() and a flange' which receives the end of the spring 26and normally covers an opening 28 in the wall of the casing 21.

The construction described comprises a safety blow olf valve for theblow pipe, the pressure at which the valve will be unseated bore 5). Therear end of chamber 6 is prol by internal'pressure being determined bythe adjustment :of thestcin 23 and the compression tot the .spring 2b.

t)n its under side` the casing vided with the threadedprojections 2S)and 3() for the. reception ot the acetylene. and oxygen .supply conduitsrespectively. The conduit. by incanS ot' which acetylene is suppliedthrough. the vpipe -o'inprises a tlexible pipe 3l. a i'alved connection,32 which is threaded into a base 33, .said base havingl threadedthereinto the casing' Ill. 'l`he uprper end of this casing is threadedinto a reduced member which in turn is connected `to the projection 29by means ol a pipe .sec-

f i tion 36.

Within the easing 8l there is located m'eans which will normally preventthe propagation ot tlame and the passage ot` a mixture of gas and oxygenthereinto. The means for preventing such passage otI tlaine andmixturecomprises two sericsof inembers` extending across the casingl andcheck valves located at opposite ends ot' said casing.l At. the lowerend of the casing is located the cheek vvalve 3T. 'lhis check valve isidentical in construction with the check valvcSS at. the upper end ot'the casingand whichlis shown more particularly in 'Fig 2.y Each checkvalve is provided With a .solid or. imper't'orate center adapted tocovorand close the passageway therebeneath.' The check 'alve 3T isadapted to elose'the passageway through Athe connection 32and checkvalve 38' in like inanner, to cover and close the/aperture` 3S) lthrough a, plate. 40 therebeneath. 'llieplatc 40 has an upstandingflange 4l forming a guide. for Ithearms 3S of the valve 2in1 Above said(lange, there is located a washer ft2, which forms a stop for the outerends of the arms, whereby a t'ree passage will be providedaround thecentral portion ot the check valve 23S-to` the pipe section 3G.

43 denotesal washer having a depending skirt or lian-ge which forms aguide for the outer ends ot the, arms of the check valve 37 fin the samemanner that. thetlttnge 4L guides the arms of the check valve. 33. The

'inwardly' projecting portion ot 43 forms a i above the check 4valve. 37there is a central aperture stop tor the check valve 3T, leaving,r aspace. around the body ot said valve Jfor the flow of` In thelowerportion of the casing 34 a'ii'd. located ra.I` series ot baille plates44 and 45. 'lyhc bailley plates klare-each provided with peripheral.notches 44 and the baille plates ll5 each withI andthe plates 44 and:45, are so arrai'iged thaty the lgas fiowing through lthe casing isspread outwardly by'- `oney ofsaid baillel plates a'ndrcziused toconiverge to the cent-ral orifice invfthe next `ballle plate, thisaction being repeated throughout the series of plates. The plates areseparated by means of Washers 46. The conis pro-- l t i l l structionand arringement ot plates provides a toi-'tuous path tor theI Q'asthrough the casing 3st and minimizes the danger of propagating llamethrough said' casing.

ln the upper portion of the casing there is arranged a .series oftransverse disksl 47 of foraminated material, such as wire gauze: saiddisks being separated by washers 48. These disks provide a restrictedtortuous 'passageway tor the gas through the upper part of the casingand also minimize the danger of the propagation of flame 'through theCasin".

'l`hc base member 33 is provided with a. lateral projection having aguide 41S) for the supply pipe 50. This pipe is provided for the purposeof .supplying oxygen to the chamber (t. being connected at its upper endto the projection 250'. The 'pipe 50 is connected ati its lower end withay flexible sup-V ply pipe 5t. At its upper end itis provided with alateral "ln-anch 52 having a valve 523 therein. This branch is providedwith a` threaded end 5l t'or use in connection with a branch pipe lo'rthe. purpose ot' sul'iplying oxygen to the blow pipe tianie when it isdesired to produce a highly concentrated tlanie.;such as is known in theart as a cuttingllame." 'l`hisbranch pipe is shown at.

55 and is connected to the lateral branch 52 b v means ot' a. union 5o.The pipe curves. around the blow pipe proper andis provided withl anow/.le 5G which diechargesthe oxygen into the gases and flame at theoutlet end ot the pipe.

(ln the pipe there `is mounted a handlel 5T. This handle is carried by abracket 58. This bracket i's provided with splitI sleeve which extendsaround the pipe '50 and is clamped to said pipeA bv means oa bolthaving` a wingv nut. (50. The handle 57 is pivotally connected to thebracket. by means ot' lugs'tl and ('32 and al bolt G3 extending throughthe lug ttl`v threaded into' the other lug n2 and providedl with a wingrnut 64. By slacking upon the wing nut''tkthe handle may be adjustedlongitudinally of the pipe 50 and may be rotated thereon to place thehandle in any ,lcsired position with respect to said pipe', while therotary @mincetion between the. handle and its bracket enables the handleitself to be setat any angle `with respect. to said bracket. Thisadjust.- -inent .providesl an extremely conveiiient. '-.l'f

'conditions ot use.A j l \s j ii'cvi'ouslyjst Ve'd. "lii` llig, .l. l

"ozt ti'ips that/nia f be employed .therewithv for the purposefot1Lonvcnience ot 'operation for the production ofi'a;k alfllame. 'ofthescft ips compr .l i i` iitttriiallj'f'threadedv connection (55; saidl'coniit'ftioii beingl ladapted to be threaded'oittotlie end -oiiithe4tip i5. This connection is; provided with a.

ans ,for operating the blow pipe in various atejdjthc tip 15 is`vthreadhave shown a combination and y boi-e tt', communicating with atapered chamber. ln this chamber there is swiveled the lower end ot' anangle pipe (3T, said pipe having a port tih communicating with anannular channel titl in the wall tliereotl and said channelcommunicating with the port tt. llv this construction. communication isalll'orded between the bore titi and the inte,- rior of the pipe t'i inany position which the latter may asume with respectl to the former.rl'he angle pipe is drawn to its seat b v means ot' a screw it)extending through a washer '71 and threaded into the lower end otl theangle pipe. the -washer bearing on the lower end ot' ti e i'itting t'i.The outer end ot the pipe oi' is threaded similarly to the tip 15 asshown at T2. '.indis provided with a tapered end TI-l iii the samenianneras the corresponds ing end ot' the t'ormer tip, so that it mayt'orm a connection tor other tips. such for instance as the tip appliedthereto iii Fig. 9. Ythis tip is constructed as a Bunsen tube 74 havingat one end a threaded connection 75 by means ot' which it may be appliedeither to the threaded end 7'2 ot the tip comprising` the. angle pipe(ST or may4 be applied directly to tip l5. as shown in Fig. 5. ThisBunsen tube is provided Vimmediately beyond the connection T5 with airports Tttwhieh are controlled b v a valve sleeve TT. The Bunsen tube ispreferably made adjustable in length by means ot' an extensible member7S teleseopically fitted thereon and secured in place h v means of a setscrew 79. The outer end otl the liuiisen tube is ot peculiar formation.such formation being secured by providing the outer end of the extensionT8 with prongs shown as V-sliaped points 80. The lnnsen attachmentadmits air to the acetylene or the mixture ot' acetylene and oxygenissuing from the tips 15 or (i7. whereby the acetylene may be burnedeither with air alone or a mixture of oxygen and air. The points H()protect. the Haine and in operation become red hot. whereby they ignitethe gases issuing from the tube in case the flame should becomeaccidentally extinguished. The adjustability of the tube by means of themember 78 controls the charaster and length of the Haine. ln Fig. tthere is shown a which may be applied to either the tips 15 or (3T whena small flame is desired.

ln opera tion. acetylene flows through the conduit 34 and the transversebaflies arranged there-in into the chaniber 5. Oxygen .is admitted bymeans ot pipe 50 and Valve 11 into the bore 7 and is discharged throughbore S into the tip 15, where it iningles with the acetylene. Should thetip l5 become obstructed, the. accumulation of pressure would cause themixture of oxygen and gas to pass baclnvardly into the easing 34, underthe relatively high ln'essurc ot the oxygen, but for the fact that thisaction is ordinarily form of tip 81 prevented by the check valve 88.This cheek valve closes communication between the casing and the blowpipes. and propagation of thune through the casing will be ordinarilyprevented. When the pressure accumulates to a point at which the valve25 is set. this valve opens and the gases escape through port 2Q. lconsider the provision of the safety valve and of the check valve to beot great importance. Should the outlet become so obstructed that tlamecannot be propag'ated therethrough into the interior ot the pipe. thereis still danger that the heat may ignite and explode the compressedmixture therein and that the mixture. backing up into the acetyleneconduit may explode and cause great damage there. rl`his action howeverwill be prevented by my construction. Should for any reason the checkvalve v:3i-i fail to operate. the check valve 3T at the opposite end ot'the "asing will eifectually prevent a mixture ot acetylene and oxygenoi." oxygen alone from passing therebeyond into the apertures.

The use ot' the branch pipe 55 with its valve 53 enable me to obtain acutting tlainewith an Oxy-acetylene blow pipe without the necessity fortwo oxygen tanks to accommodate the varying pressures required in theblow 'pipe and in the branch pipe. ani enabled to conduct through pipe55 and valve oxygen at the maximum pressure within the tank while. byuse of the valve 11. 1 ani enabled to reduce the. pressure of the oxygento such a point as will make it most etlirient for mixture withacetylene in'the blow pipe. The tip 67 renders the pipe particularlyconvenient for working in corners and for directing the flame to variousout- `ot`theway places, and is useful either as a with other tips. Themanner ot' connecting the handle to the pipe enables the. latter to bevery convenient-ly manipulated, and this result is facilitated by theuse ofthe swivel tip.

Itlaving t'hus described my inventioi'nwhat I claim is:

l. The combination, with a bloiitv pipe casingof a' conduit forsupplying gas therethrough, and a series of transverse members in saidconduit, said members being, spaced apart and being provided -withapertures forming a restricted passageway for thegas through theconduit.

The combination ot a blow pipe having a conduit, for supplying gastherethrough. and two series of transverse menibers in said blow pipe,the members of one series being formed of foraminous material and themembers of the other series being provided alternately with centrallyarranged and externally arranged apertures providing a .tortuouspassageway for the gas through the conduit.

The combination single tip or combined of a blow pipe having l y ya'conduit for supplying gas therethrough; anda series ot spacedtransversely arranged incii'ibers of" :toraminous material in saidconduit forming a restricted passageway for gas therethrough. l y l 4.The coinbiiiation of a blow pipe, a con- 4vduit for supplying gastl'ierethrough, and a series ottransvcrse partitionsin said conduit,'said partitions ,beings provided alternately with a centrally arrangedand an externally arranged. passageway, providing a 'restrictedtoi'tuous passagewayw for gas vthrough'the conduit. 1

5. The combination of a blow pipe and means for supplying gastherethrough,said

'inean's comprising a conduit, having means providing a restrictedpassagewaytm gasA therethrough, and a check valve arranged to close thedischarge end of the conduit,

6.' rl`he con'ibination ot a blow pipe. a con duit lfor supplying gastherethrough. means ltorining a' restricted .passageway .for gascentering said disk.

8. The combination of .a blow pipe and a conduit for supplyingtherethroi'igh. said conduit having at the discharge end thcreot a diskprovided with a central aperture and a peripheral vflange extendingalong said conduit,fa' check valve controlling the apci'- ture in saiddisk and comprising a disk hav-l 'ing l a centra-l body adapted t-o,close said yliavi no sa gew.;

aperture and a passageway exterior to said' central b0dy,vsa'idvalvehaving means enk-p said flange,l and an inwardly proJectL- easing ingmember beyond said flange and adapted to engage the peripheral portion.of the check valve to l-iinit the movement of the. same away yrointhe,aperture in .the first-men- ,i 9.Tliecdinbination of ay .blow/pipe,I aconduit 'fori' supplying' gas therethrough, .s aid each .endthereof adisk,v

cond'uit having-atl oiieoic said disks having a flange pro]ccting,toward the 4oiitlctjend.- ofthe conduit and the oth'crnha ving a-tlangeprojecting toward the letjen'd otthe conduit, the disk which a( cent"tothe outlet end being Iprovided 'h' aiice'ntral aperture. andadiskvalvea't .y ir f Y i hen l ot' said conduit, each 01tsaid valvesycentral vbody poi'tijoirand a pas vje-xtcinal to-said central `bodyporf ytion'am'i cach valve having means engaging v a flange whercbv saidvalves are centercdl.

ylt). blow pipe. coniprisinga easing hav" ing means for supplying gasesthereto, and

iii the saine.

i provided lwith a. bore.

a relief Ivalve carried by said casing and adapted to open when thevpressure invthi` casing reaches a certain predetermined -degree; v

1l. Ablow pipe comprising acasing having means for supplying gasesthereto, a relicl valve carried by said casing and adapt1- ed to beopened b v the. pressure in the casing and means whereby the pressure atwhich said valve opens may be vaiied. y

12. A blow pipe comprising a casing having a mixing'chamber t'or gases'therein', and a |ircssure-iclieiu valve communicating with said chamberand adapted to open whenv the pressuricxcccds a predetermined liin'it.

13. blow pipe 'comprising a cz'ising,

mcaiis lior supplying gases thereto, a pipe pi'ojciaiug tromsaid casing,said pipe hav iii/fran' outwardlyopening valve tlli'erein, a

"spring tending to scat said valve, and n'i'eans 'l'oi' adjusting thetciisionot'said spring.

l-t-."|`he combination'.of al blow pipe', a conduit torsupplyingthereto, said conduit having meanstormingza restricted passageway forgas therethrough, uncheck' valve at the outlet ciid of said conduit, anda pressure-relief valve communicating lwith the blow 'pipe casing. l v

15. 'l`lie conibinat ion of a blow pipe, a conduit for supplying gastheretoysaid conluit"ba\'ingia check valvei arrangedto be sc'atci'l b vpressure created within'the blow.

pipe. and a pressure-relief valve tor said pipe a rraiiged to be openedh v pressure withlo..Y rl`he coinbinationot a blow pipe casing. aconduit for supplying gas thereto, said conduit'havingy means forming arestricted passageway for the gas therethrough, a clieckvalvcuat.eachend' of said conduit. and a pressure relief valve for said casingadapted: to' bc'ol'iened by pressure within said casing.,

flTQn irblow pipe, the combination of a casing. means for supplyinggases thereto, and a tip tor saidcasing, saidy tip comprising twomembers` and a swivel` connection between said members. n n A 18. l'nablowfpipc. the coinbinatioii of a casing having means;forlsupplyinggases Athereto'. vand a-tip forsaidcasing."gsaid"tip comprising a .pairrof rotatably connected members. one.of-.',said n'icn'ibcrs bciiigprovidedk with an internalthread'torapplication to the blow pipe. andtbc other mcinbcr having a` swiveled .connection with :tbc "tormer:iueinbcim each of said n'zicinbc'rs:r being and means4 forpreserving'communication between said bores. "15). A' blow `pipecomprising aleasing. nicaiis 'tor supplyinggascs thereto. and 'a tip forsaid blow `pipe.. said tip `having' atone :end a tlircadcd coi'incctionfor, appnlizy-ation to the 'pipc and a; tube projcctii'ig from saidconnection and having a valvc-coi'itrolled aperture adjacent to saidconnection, and means for varying theI length of said tube.

Q0. A blow pipe comprising a casing, means for supplying gases thereto,and a tip for said blow pipe, said tip having at one end a threadedconnection for application to the pipe and a tube projecting from saidconnection and having a. valve controlled aperture adjacentto saidconnection, said tube comprising two teleseoping members and means forsecuriiig said members to- 2l. A blow pipe comprising a casing havingmeans for supplying gases thereto and a tip, saidtip having at one end athreaded connection and having adjacent said connection avalve-controlled aperture and a tube projecting beyond thevalve-controlled aperture, saidv tube having its outer end provided withprongs.

The combination of a blow pipe casing, a pipe for supplying gas thereto,and a handle mounted on said pipe and longitudinally adjustable thereon.I

The combination of a blow pipe casing, a pipe for supplying gas to saidcasing, a handle rotatably mounted on said pipe, and means tor securingsaid handle rigidly to said pipe.

24. The combination of a blow pipe casing, a pipe for supplying a gasthereto, a bracket adjustable longitudinally and rotarily with respectto Said pipe, and a handle rotarily adjustable on said bracket.

25. A blow pipe comprising a casing having means for supplying gasesthereto and a tip, said tip having a tube the-outer end of which isnotched or serrated.

The combination ofa blow pipe having a conduit for supplying gastherethrough, and a series of uniformly spaced transverse members offoraminous material in said conduit forming a restricted passageway forgas therethrough. o

27., The combination of a blow vpipe having a conduit for supplying gastherethrough, a series of transversely extending members of foraminousmaterial in said conduit, forming a restricted passagmvay tor gastherethrough, and washers interposed between said members.

2S. A blow pipe comprising a casing having means t'or supplying gasestherethrough and a tip, said tip having at one end a connection forapplication to said casing and having adjacent said connection an aperture, and a tube projecting beyond the said aperture.

In testimony whereof, I hereunto affix my signature in the presence oftwo witnesses. JOHN F. WILLIAMS. Vitnesses J. B. HULL,

BRENNAN B. WEST.

